Run #4259 (the systemd-in-container debut) cleared every prior failure class, ran for 15 minutes, then died inside 1100_sanity-tests' aptgetopt_conf_add at: tee: /home/root/derivative-binary/30_derivative-maker.conf: No such file or directory last_failed_bash_command: tee --append -- "$dist_aptgetopt_file" > /dev/null Two compounding bugs: 1. **user_name resolves to "root" via $SUDO_USER** derivative-maker/help-steps/variables (lines 80-93) computes user_name with these fallbacks, in order: [ -n "$user_name" ] || user_name="$SUDO_USER" [ -n "$user_name" ] || user_name="$(logname 2>/dev/null)" if [ -z "$user_name" ] && [ "$(id -u)" != "0" ]; then user_name="$(whoami)" [ -n "$user_name" ] || user_name="$USER" fi build.sh enters the container as root (systemd's docker-entrypoint.service runs as root), then sudoes to user via `sudo --preserve-env -u user --`. sudo always sets SUDO_USER to the *calling* user (= root), regardless of --preserve-env. So variables.sh hits the first fallback and computes user_name="root", then HOMEVAR=/home/root, then binary_build_folder_dist= /home/root/derivative-binary — a directory that does not exist because root's home is /root (not /home/root). Fix: build-inner.sh now exports user_name=user before sourcing the config, satisfying the first-priority check in variables.sh and short-circuiting the SUDO_USER fallback. The comment in the script notes the failure mode for the next reader. 2. **Missing mkdir of derivative-binary** Upstream's derivative-maker-docker-start does: mkdir --parents -- "${HOME}/derivative-binary" before invoking derivative-maker. Our build-inner.sh skipped that because previous iterations didn't reach the point where it mattered. Now that we do, we replicate it. 3. **Output collection path correction** derivative-maker writes its ISO/manifest output into ${HOME}/derivative-binary (per variables.sh:109) — not into the source tree under linux/build/derivative-maker. The previous `find . -maxdepth 6 -type f -name "*.iso"` would have missed everything once we got that far. Updated to `find "${HOME}/derivative-binary" ...`. No image rebuild needed — this is a pure script-and-env change. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
SilverMetal
Privacy-hardened devices for users who want their privacy back — on whatever platform they have.
SilverMetal is SilverLABS' cross-platform privacy-hardening program. We don't believe in "one true OS" — we meet users on the platform they actually use, and give them the strongest hardening that platform physically allows. Honestly labelled, no marketing fluff.
Two product lines
The SilverMetal program ships two distinct product lines, named to make their scope obvious to buyers:
🔒 SilverMetal OS
We ship the operating system or ROM. Full kernel-level control, our verified-boot key, our update channel. Strongest possible hardening.
- SilverMetal OS — Linux (Debian/Kicksecure-based ISO) — Tier A
- SilverMetal OS — Pixel (GrapheneOS-fork ROM) — Tier B
- SilverMetal OS — Samsung (LineageOS-fork ROM, unlocked-bootloader models) — Tier C
- SilverMetal OS — Motorola (DivestOS/LineageOS-fork ROM) — Tier C
🛡️ SilverMetal Enhanced
We harden the OS your device already runs. Configuration profiles, hardening installers, the SilverLABS Application Stack. For users who can't or won't replace their OS.
- SilverMetal Enhanced — Windows (LTSC IoT installer + hardening + Stack) — Tier C
- SilverMetal Enhanced — macOS (signed config profile + setup script + Stack) — Tier C-D
- SilverMetal Enhanced — iOS (MDM profile + Stack) — Tier D
- SilverMetal Enhanced — Android (generic profile + Stack on existing Android) — Tier D
Tiers explained in docs/platform-matrix.md.
What every SilverMetal device gets
Both lines ship the SilverLABS Application Stack — a suite of cross-platform privacy apps that replace the cloud services your device normally talks to (Google, Apple, Microsoft):
| Component | Status | Purpose |
|---|---|---|
| SilverBrowser | v1 (Linux MVP) | De-Googled, telemetry-free, fingerprint-resistant browser |
| SilverVPN | Existing — see SilverLABS/SilverVPN |
Always-on, no-logs VPN with our own infrastructure |
| SilverSync | v1 (Linux MVP) | Private replacement for iCloud / Google Drive / OneDrive |
| SilverChat | Existing — SilverVPN.Client.Chat, Signal Protocol over VPN transport. Promoted from v1.1 to v1 |
E2EE messenger |
| SilverDuress | v1.1 | Duress password / panic-wipe / anti-coercion |
| SilverKeys | v1.1 | Zero-knowledge password + 2FA manager |
Two ways to get SilverMetal
Every flavour — OS or Enhanced — supports both buyer modes:
"I'm choosing a new device"
Buy a preflashed SilverMetal SKU. We've done all the work; it arrives ready.
"I already own a device and want to harden it"
Download the free SilverLABS Stack + the SilverMetal OS or Enhanced package for your platform. Apply it yourself. Same software, same hardening, no hardware lock-in.
Status
| Component | Status |
|---|---|
| Documentation + roadmap | Initial scaffold complete |
| SilverMetal OS — Linux v1 | Phase 1 — moving to milestone 1.1 (build pipeline) |
| SilverLABS Stack v1 (Browser + Sync) | Planning |
| SilverVPN | Existing product, integration into v1 ISO planned |
| SilverChat | Existing product (SilverVPN.Client.Chat); promoted to v1, integration into v1 ISO planned |
| Other OS/Enhanced flavours | Planning, post-Linux v1 |
See docs/roadmap.md for the milestone-driven plan.
Related repositories
| Repo | Relationship |
|---|---|
SilverLABS/SilverVPN |
The VPN component of the SilverLABS Stack — already in production. SilverMetal integrates it; does not re-implement it |
SilverLABS/SilverApple |
Deprecated. Earlier iOS-hardening prototype, superseded by SilverMetal Enhanced — iOS |
SilverLABS/SilverDROID |
Unrelated (SilverSHELL AppStore Android client). Name is similar but scope is different |
Documentation
docs/threat-model.md— who we defend against, who we don'tdocs/design-principles.md— privacy-by-default, verifiability, honestydocs/platform-matrix.md— full per-platform pros/consdocs/roadmap.md— milestones, ship order, scopedocs/trust-model.md— signing keys, reproducible builds, governance
License
Components carry their own licenses (most are GPL/MIT/Apache-derived from upstream forks). Original SilverLABS-authored glue code is AGPL-3.0-or-later. See LICENSE.
SilverLABS
SilverMetal is built by SilverLABS — privacy-first infrastructure and applications.